CN205845249U - A kind of oil recovery warning circuit - Google Patents
A kind of oil recovery warning circuit Download PDFInfo
- Publication number
- CN205845249U CN205845249U CN201620813500.1U CN201620813500U CN205845249U CN 205845249 U CN205845249 U CN 205845249U CN 201620813500 U CN201620813500 U CN 201620813500U CN 205845249 U CN205845249 U CN 205845249U
- Authority
- CN
- China
- Prior art keywords
- circuit
- resistance
- outfan
- operational amplifier
- reverse
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Emergency Alarm Devices (AREA)
Abstract
This utility model oil recovery warning circuit belongs to petroleum production engineering field, is specifically related to a kind of warning circuit；The reverse adder operation circuit built for core with operational amplifier U1 that this warning circuit includes being sequentially connected with, anti-phase scaling circuit, the differential-type level comparison circuit built for core with voltage comparator U3 and the warning circuit being made up of sound alarm circuit and optical alarm circuit built for core with operational amplifier U2；This utility model oil recovery warning circuit has expanded function, it is possible to report to the police multiple situation together.
Description
Technical field
This utility model oil recovery warning circuit belongs to petroleum production engineering field, is specifically related to a kind of warning circuit.
Background technology
In oil recovery process, it is frequently encountered various unconventional state that may bring danger to oil recovery process, for
Guaranteeing that oil recovery process is safe and orderly is carried out, and needs to report to the police under unconventional state, to play the work reminding staff
With.
At present, the warning circuit that this area is used is independent warning circuit, i.e. designs a report for certain problem
Alert circuit, for another one problem, it is necessary to redesigning a warning circuit, such warning circuit does not the most have extension
Function, and design the problem that multiple warning circuit there is also the duplication of labour.
Utility model content
In order to solve the problems referred to above, this utility model devises a kind of oil recovery warning circuit, and this warning circuit has extension
Function, it is possible to multiple situation is reported to the police together.
The purpose of this utility model is achieved in that
A kind of oil recovery warning circuit, including the reverse adder operation circuit being sequentially connected with, anti-phase scaling circuit, differential
Type level comparison circuit and warning circuit；
Described reverse adder operation circuit includes operational amplifier U1, is connected in operational amplifier U1 reverse input end in parallel
Resistance R111, R112 ..., R11n, be connected to the resistance R12 of operational amplifier U1 input in the same direction, concatenation operation amplifier
The resistance R1f of U1 reverse input end and outfan；Described resistance R111, R112 ..., the outfan of R11n connection sensor；
Described anti-phase scaling circuit includes operational amplifier U2, is connected to the electricity of operational amplifier U2 reverse input end
Hinder R21, be connected to the resistance R22 of operational amplifier U2 input in the same direction, concatenation operation amplifier U2 reverse input end and output
The resistance R2f of end；Described resistance R21 connects the outfan of reverse adder operation circuit；
Described differential-type level comparison circuit includes the reverse input end input gate of voltage comparator U3, voltage comparator U3
The input in the same direction of voltage limit Ur, voltage comparator U3 connects the outfan of anti-phase scaling circuit；
Described warning circuit includes sound alarm circuit and the optical alarm circuit being arranged in parallel, and described sound alarm circuit is differential
Series resistance R41 and buzzer between outfan and the ground of type level comparison circuit, described optical alarm circuit is at differential-type level
Series resistance R42 and light emitting diode between outfan and the ground of comparison circuit.
Beneficial effect:
Owing to being provided with n resistance, respectively resistance R111, R112 ..., R11n in reverse adder operation circuit, because of
This is at best able to connect n sensor, i.e. reports to the police n event, therefore has expanded function；
Owing to resistance R111, R112 ..., R11n can be adjusted as required, therefore, it is possible to as required than
Example adjusts, and i.e. adjusts the weight of different sensors transmission signal；
Above effect makes this utility model oil recovery warning circuit, has expanded function, it is possible to report multiple situation together
Alert.
Accompanying drawing explanation
Fig. 1 is the circuit connection diagram of this utility model oil recovery warning circuit.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model detailed description of the invention is described in further detail.
The oil recovery warning circuit of the present embodiment, circuit connection diagram is as shown in Figure 1.This oil recovery warning circuit includes successively
Reverse adder operation circuit, anti-phase scaling circuit, differential-type level comparison circuit and the warning circuit connected；
Described reverse adder operation circuit includes operational amplifier U1, is connected in operational amplifier U1 reverse input end in parallel
Resistance R111, R112 ..., R11n, be connected to the resistance R12 of operational amplifier U1 input in the same direction, concatenation operation amplifier
The resistance R1f of U1 reverse input end and outfan；Described resistance R111, R112 ..., the outfan of R11n connection sensor；
Described anti-phase scaling circuit includes operational amplifier U2, is connected to the electricity of operational amplifier U2 reverse input end
Hinder R21, be connected to the resistance R22 of operational amplifier U2 input in the same direction, concatenation operation amplifier U2 reverse input end and output
The resistance R2f of end；Described resistance R21 connects the outfan of reverse adder operation circuit；
Described differential-type level comparison circuit includes the reverse input end input gate of voltage comparator U3, voltage comparator U3
The input in the same direction of voltage limit Ur, voltage comparator U3 connects the outfan of anti-phase scaling circuit；
Described warning circuit includes sound alarm circuit and the optical alarm circuit being arranged in parallel, and described sound alarm circuit is differential
Series resistance R41 and buzzer between outfan and the ground of type level comparison circuit, described optical alarm circuit is at differential-type level
Series resistance R42 and light emitting diode between outfan and the ground of comparison circuit.
Claims (1)
1. an oil recovery warning circuit, it is characterised in that the reverse adder operation circuit that includes being sequentially connected with, anti-phase scaling
Circuit, differential-type level comparison circuit and warning circuit；
Described reverse adder operation circuit includes operational amplifier U1, is connected in the electricity of operational amplifier U1 reverse input end in parallel
Resistance R111, R112 ..., R11n, be connected to the resistance R12 of operational amplifier U1 input in the same direction, amplifier U1 is anti-in concatenation operation
To the resistance R1f of input and outfan；Described resistance R111, R112 ..., the outfan of R11n connection sensor；
Described anti-phase scaling circuit includes operational amplifier U2, is connected to the resistance of operational amplifier U2 reverse input end
R21, it is connected to the resistance R22 of operational amplifier U2 input in the same direction, concatenation operation amplifier U2 reverse input end and outfan
Resistance R2f；Described resistance R21 connects the outfan of reverse adder operation circuit；
Described differential-type level comparison circuit includes that the reverse input end input gate of voltage comparator U3, voltage comparator U3 is rationed the power supply
The input in the same direction of pressure Ur, voltage comparator U3 connects the outfan of anti-phase scaling circuit；
Described warning circuit includes sound alarm circuit and the optical alarm circuit being arranged in parallel, and described sound alarm circuit is at differential-type electricity
Series resistance R41 and buzzer between outfan and the ground of flat comparison circuit, described optical alarm circuit compares at differential-type level
Series resistance R42 and light emitting diode between outfan and the ground of circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620813500.1U CN205845249U (en) | 2016-07-30 | 2016-07-30 | A kind of oil recovery warning circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620813500.1U CN205845249U (en) | 2016-07-30 | 2016-07-30 | A kind of oil recovery warning circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205845249U true CN205845249U (en) | 2016-12-28 |
Family
ID=57641808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620813500.1U Expired - Fee Related CN205845249U (en) | 2016-07-30 | 2016-07-30 | A kind of oil recovery warning circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205845249U (en) |
-
2016
- 2016-07-30 CN CN201620813500.1U patent/CN205845249U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205845249U (en) | A kind of oil recovery warning circuit | |
| CN102931629A (en) | Quick relay protection method and circuit for current type transmitting signal input channel | |
| CN202583333U (en) | Human body static detecting system | |
| CN103646489A (en) | Fire hazard alarm device | |
| CN103778059A (en) | Method and system for abnormity warning | |
| CN204706140U (en) | Safety detection supervising device | |
| CN205910792U (en) | Long distance transmission acousto -optic warning circuit of expanded portable | |
| CN205845225U (en) | A kind of multiple channel acousto optical alarm circuit | |
| CN204576709U (en) | A kind of backflow cable anti-theft monitor | |
| CN104295320A (en) | Intelligent tunnel construction safety monitoring system | |
| CN204242351U (en) | A kind of portable detection of gas warning device control system | |
| CN201803807U (en) | Temperature sensor | |
| CN203503081U (en) | Vibration alarm-based burglar alarm device | |
| CN205017359U (en) | Intelligent safety inspection instrument of information outer net | |
| CN203690911U (en) | Anti-surge sensor | |
| CN202220626U (en) | Monitoring protector for oil level of oil tank, thermal expansion and oil servo-motor | |
| CN203148466U (en) | ARM-based humiture monitoring and alarm system | |
| CN104932967A (en) | Overtemperature alarm circuit of computer | |
| CN104048728A (en) | Sound-light alarm circuit | |
| CN204330145U (en) | A kind of temperature of cable junction control system | |
| CN203759048U (en) | Motor torque and rotating speed measuring device | |
| CN102331267A (en) | Eddy current sensor | |
| CN205562050U (en) | Automatically controlled digital display temperature system of production facility | |
| CN101968384B (en) | Temperature sensor | |
| CN203733251U (en) | Ultraviolet flame detector system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161228 Termination date: 20170730 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |